subtraction technique การใช้

When the subtraction technique described above is used, fringes are obtained which represent in-plane displacement contours.
Using a subtraction technique a series of black-and-white negative frames is generated into a computer, precisely localising the ball's point of contact.
This method is similar to the addition / subtraction technique used for high-speed electronic circuits with the logarithmic number system in specialized computer applications like the Gravity Pipe ( GRAPE ) supercomputer and hidden Markov models.
:: : thanks you . l am aware of the modern spectral subtraction techniques such as is used in Cool Edit etc . I have a reissued CD digitally remixed in 1989, where they say on the sleeve note that they have managed to remove most of the tape hiss ( caused by too low a recording level ) on the original master tape.